Cross rolling machine



Oct. 30, 1934. p ABRAMSEN 1,979,133

CROSS ROLLING MACHINE Original Filed July 26, 1930 6 Sheets-Sheet 1 O a o 0 g I) f Q) [0/ 0 'u I o N N o Sb 0 :E] I I o 0 [Q Q ol H I l )0 n I 0 If} H o N O O co m N0 TfiTo N Q3 {2&5 N 6 MM M r M Oct. 30, 1934. P. B. ABRAMSEN GROSS ROLLING MACHINE Original Filed July 26, 1930 6 Sheets-Sheet 2 INVENTOR .6.

1934. P. B. ABRAMSEN CROSS ROLLING MACHINE Original Filed July 26, 1930 6 SheetsSfieet 3 WEN INVZNTOR Mai/ 6 Sheets-Sheet 4 INVENTOR Oct. 30, 1934. P. B. ABRAMSEN CROSS ROLLING MACHINE Original Filed July 26, 1930 Oct. 30, 1934. P. B. ABRAMSEN CROSS ROLLING MACHINE Original Filed July 26, 1930 6 Sheets-Sheet 5 i- INVENTOR Oct. 30, 1934. P. B. ABRAMSEN CROSS ROLLING MACHINE Original Filed July 26, 1930 6 Sheets-Sheet 6 gem-o:

Patented a. 30, 1934 UNITED STATES CROSS ROLLING MACHINE Petter B. Abramsen, Pittsburgh, Pa.

Application July 26, 1930, Serial No. 470,827 Renewed February 12, 1934 25 Claims.

This invention relates to cross rolling machines and is applicable to machines of that character whether used for hot or cold rolling, straightening or any other operation wherein such machines 7 I are used. It relates more particularly to means for adjusting the rolls and for placing them in the desired position relatively to each other.

In a cross rolling machine, the two rolls forming a pair are arranged with their axes in parallel planes, and provision must be made for adjusting the rolls toward or away from one another. It has heretofore been the practice to drive the cross rolls through spindle and Wobbler connections much like those employed in an ordinary ll rolling mill, with the exception that instead of the spindles lying parallel to one another and above the floor level, it has been necessary to extend them along the axes of the rolls and to make them of considerable length. All of this has required that the bed of the mill be very large and that the parts be exceedingly heavy and cumbersome. The spindles have had to be of considerable length in order to give the desired range of adjustment and as a result there has been a great deal of heavy mechanism located in the pit below the mill floor.

I provide a drive shaft which extends at substantially right angles to the axis of the cross roll and gearing connecting the cross roll and the drive shaft. The drive shaft extends in the direction of adjustment of the cross roll and spiral gearing is preferably employed. It is characteristic of the spiral gears that one of them may be rolled over the face of the other without inter- 85 fering with their driving relationship. With my improved drive therefor, the lateral adjustment of the rolls may be made without interrupting the operation of the machine. In the apparatus which I provide, the gears for the cross rolls may be directly attached to short extensions on the roll necks and the entire mill rendered very compact.

In the usual cross rolling machine, a plurality of pairs or sets of rolls are used. In order that the machine may be capable of readily handling tubes, bars or rounds of various sizes, it is desirable that the rolls not only be adjustable laterally of the machine so as to provide a variable pass, but that they be also adjustable longitudi- .60 nally of the machine. I, therefore, provide, by my invention, means whereby the rolls or pairs of rolls may be adjusted longitudinally of the machine and in the direction of travel of the material therethrough.

The machine which I provide is applicable for PATENT OFFICE straightening as well as performing other rolling operations. In the usual straightening machine, an idler roll is placed between driven passes and located out of line with the driven passes. By virtue of the machine which I provide, at least one of the sets of cross rolls may be adjusted so that the pass formed thereby will be out of line relative to the pass formed by an adjacent set. This gives a driven pass in place of the usual idler roll used in straightening machines.

By my invention, I further provide a new combination of longitudinal and lateral adjusting means whereby complete adjustment of the rolls may be obtained so as to enable the machine to be used for either rolling or straightening of material of various sizes.

The present application is a continuation in part of my copending application Serial No. 342,- 921, filed February 26, 1929.

In the accompanying drawings, I have shown for purposes of illustration only a preferred embodiment of my invention.

In the drawings,

Figure 1 is a plan view of a cross rolling machine embodying my invention;

Figure 2 is a side elevation of one of the end stands of rolls shown in Figure 1;

Figure 3 is an end view of the center stand of rolls partly in elevation and partly in section;

Figure 4 is a section taken along the line IV- IV of Figure 3;

Figure 5 is a plan view of the longitudinal adjusting mechanism;

Figure 6 is an end view of the longitudinal adjusting mechanism shown in Figure 5; and

Figure 7 is a side elevation of the longitudinal adjusting mechanism shown in connection with a roll stand.

The machine shown in the drawings comprise a main frame in the form of rails 2 having ro housings 3 mounted thereon. In each of the ro housings 3 is mounted a pair of cross rolls 4. Each attached thereto at 7 an adjusting screw 8 threaded in the housing. Each adjusting screw 8 ha handles 11 for rotating the adjusting screw.

Each cross roll 4 is mounted in bearings 12 which cooperate with the shaft 13 of the roll Each roll shaft 13 is provided on its lower en with a spiral gear 14 adapted to cooperate wit a spiral gear 15 mauled by a shaft 16 extend laterally of the roll stand. Each shaft 16 is mount ed. bearings 17 carried by the housing.

described.

It will be seen that with my improved construction, the slides 5, which are movable in guideways 6, may be adjusted to effect a lateral adjustment of the cross rolls without any disturbance of the driving connections. If the slide 5 is adjusted, the corresponding spiral gear 14 simply rolls across the face of its meshing gear, but maintains proper tooth engagement at all times.

The cross rolling machine which I have shown comprises three stands of rolls. The center stand of rolls is fixed on the frame. Longitudinal adjusting mechanism is provided for each of the end stands of rolls, whereby the rolls may be moved forward or backward relative to the cen-' ter stand of rolls. At each end of the main frame of the cross rolling machine there is provided a frame bolted to the main frame 2 by means of bolts 26. Each frame is provided with a hearing 27 adapted to receive and support the main drive shaft 18. Each frame 25 is also provided with a bearing 28 on each side of the bearing 27 for supporting one end of the shafts 29 which extend longitudinally of the machine. Each shaft 29 has mounted thereon a gear 30 located adjacent the frame 25. The other end of each of the shafts 29 has a threaded portion 31 thereon adapted to cooperate with a threaded portion 32 of a bushing 33 mounted in the roll stand. The bushings 33 are fastened to the roll stand by means of bolts 34.

A gear 35 is feather-keyed to the main drive shaft 18 adjacent each frame 25. Each gear 35, when in operating position, is adapted to cooperate with adjacent gears 30. As may be readily seen,'rotation of the main drive shaft 18 will impart rotation to the adjusting shafts 29 through gears 30 and 35. This will cause the roll stands carrying the rolls to move longitudinally of the machine, since they are slidably mounted on the main frame.

Each gear 35 is adapted to be disengaged from gears 30 by means of a handle 36 pivotally mounted at 37 and a lever 38 pivotally attached to framework on the gear wheel at 39 and to the handle at 3'7. Selective operation of the shafts 29 may be obtained through the gearing and clutch just described.

The lateral and longitudinal adjustment mechanism just described provides substantially complete adjustability of the cross rolling machine. Both lateral and longitudinal adjustment mechanism is necessary in order for the mill to be capable of handling material of varying sizes. Longitudinal adjustability is essential in order to take care of .material of various lengths, whereas lateral adjustability is essential in order to provide for material of various sectional areas.

While I have described a preferred embodiment of my invention, it is to be understood that it is not to be limited thereby, but may be otherwise embodied within the scope of the following claims.

I claim:

1. In a cross rolling machine, a main frame, a plurality of roll housings mounted thereon, a plurality of cross rolls mounted in the housings, a

main driving shaft for driving the. rolls, and means selectively operable by the main driving shaft for adjusting at least one of the roll housings longitudinally of the machine.

2. In a cross rolling machine, a cross roll, a drive shaft extending at substantially right angles thereto, gearing connecting the cross roll and the drive shaft, the gearing being arranged to permit of adjustment of the cross roll laterally, means for adjusting the cross roll laterally of the machine, a main drive shaft extending longitudinally of the machine, gearing connecting the first mentioned drive shaft and the main drive shaft, and means operated by the main drive shaft for adjusting the cross roll in the direction of travel of material through the machine.

3. In a cross rolling machine, a frame, a roll housing mounted thereon, a drive shaft carried by the housing, a slide movable in the housing laterally of the machine and in a direction substantially parallel to the axis of the shaft, a cross roll journaled in the slide and substantially fixed against lateral movement relatively thereto, a driving connection between the cross roll and the drive shaft adapted to permit lateral adjustment of the cross roll, a main drive shaft at substantially right angles to the first mentioned drive shaft, gearing connecting said shafts and means actuated by the main drive shaft for adjusting the cross roll longitudinally of the machine.

4. In a cross rolling machine, a plurality of cross rolls, a slide supporting each cross roll, each slide being movable so as to effect lateral adjustment of the cross rolls, a plurality of drive shafts extending in the direction of adjustment of the slides, gearing of such character as to permit lateral adjustment of the cross rolls connecting the drive shaft with the several cross rolls, a main drive shaft, gearing connecting the main drive shaft and the aforementioned drive shafts, and means operated by the main drive shaft for selectively adjusting the cross rolls longitudinally of the machine.

5. In a cross rolling machine, a cross roll, a shaft extending at an angle to the axis of the cross roll, means for adjusting the cross roll laterally of the machine along the shaft in such manner as to maintain such angularity constant, gearing connecting the shaft and the crossroll in any adjusted position, a main drive shaft, gearing connecting the main drive shaft and the first mentioned shaft and means for adjusting the cross roll longitudinally of the machine.

6. In a cross rolling machine, a main frame, a roll housing mounted thereon, a cross roll mounted in the housing, a drive shaft substantially perpendicular to the cross roll, means for adjusting the roll laterally of the machine, gearing adapted to connect the cross roll and the drive shaft in any adjusted position, means for adjusting the cross roll longitudinally of the machine, and a common main drive shaft for driving the roll and the longitudinal adjusting means.

7. In a cross rolling machine, a main frame, a roll housing mounted thereon, a plurality of cross rolls mounted on the housing, a plurality of drive shafts substantially perpendicular to the cross rolls journaled in the housing, means for adjusting the rolls laterally of the machine, gearing adapted to connect the cross rolls and the drive shafts in any adjusted positions of the rolls,

means for adjusting the roll stand longitudinally of the machine, and a common main drive shaft for driving the cross rolls and the longitudinal adjusting means.

8. In a cross rolling machine, a main frame, a plurality of roll housings mounted thereon, a plurality of cross rolls mounted in the housings, a plurality of drive shafts substantially perpendicular to the cross rolls joumaled in the housings, means for adjusting the cross rolls laterally of the machine, gearing adapted to connect the cross rolls and the respective drive shafts in any adjusted position of the rolls, means for adjusting at least one of the roll stands longitudinally of the machine, and a common main drive shaft for driving the cross rolls and the longitudinal adjusting means.

9. In a cross rolling machine, a plurality of cross rolls, a main drive shaft, means effecting a driving connection between the main drive shaft and the cross rolls, means for effecting a lateral adjustment of the cross rolls without disturbance of the driving relationship thereof, and means selectively operable by the main drive shaft for effecting the longitudinal adjustment of the rolls.

10. In a cross rolling machine, a plurality of sets of cross rolls, means for driving the cross rolls, and means for adjusting at least one set of cross rolls so that the pass formed thereby is out of line relatively to the pass formed by an adjacent set.

11. In a cross rolling machine, a plurality of sets of cross rolls, means for driving the cross rolls, means for adjusting at least one set of cross rolls for moving the pass formed thereby out of line relatively to the pass formed by an adjacent set, and means for adjusting at least one of the sets of rolls longitudinally of the machine.

12. In a cross rolling machine, a main frame. a plurality of roll housings mounted thereon, a pair of cross rolls mounted in each housing, means for adjusting at least one pair of rolls so that the pass formed thereby may be moved out of line relatively to the pass formed by an adjacent set and for adjusting the size of the pass, means for adjusting at least one of the pairs of rolls longitudinally of the machine, and means for driving the rolls.

13. In a cross rolling machine, a plurality of sets of cross rolls, means for driving the cross rolls, and means for adjusting a set of cross rolls laterally of the machine so that the pass formed by said rolls may be out of line relative to the pass formed by an adjacent set of rolls.

14. In a cross rolling machine, a plurality of .sets of cross rolls and means for adjusting a set of cross rolls laterally of the machine to move the pass formed by said rolls out of line relative to the pass formed by an adjacent set of rolls.

15. In a cross rolling machine, a plurality of sets of cross rolls for successively engaging and operating on the material passing therethrough, means for driving the cross rolls, means for adjusting at least one set oi cross rolls laterally of the machine, and means for adjusting at least one set of rolls longitudinally of the machine.

16. In a cross rolling machine, a plurality of cross rolls having their axes lying in substantially parallel planes, a drive shaft extending at substantially right angles to such planes, and gearing connecting the drive shaft and the several cross rolls, the cross rolls being relatively adjustable while their axes remain in substantial parallelism.

1'7. In a cross rolling machine, a pair of cross rolls having their axes lying in substantially parallel planes, a plurality of driving shafts extending at substantially right angles to such planes, and gearing connecting the drive shafts and the cross rolls, the cross rolls being adjustable in the same direction laterally of the machine while their axes remain in substantial parallelism.

18. In a cross rolling machine, a pair of cross rolls, a plurality of shafts extending at an angle to the axis of each of the cross rolls, means for adjusting the cross rolls in the same direction along the shafts in such manner as to maintain such angularity constant, and gearing connecting the shafts with the cross rolls in any adjusted position.

19. In a cross rolling machine, a plurality of cross rolls having their axes lying in substantially parallel planes, a slide supporting each cross roll, the slides being movable so as to effect lateral adjustment of the cross rolls while their axes remain in substantial parallelism, a plurality of drive shafts extending in the direction of adjustment of the slides, and gearing connecting the drive shafts with the several cross rolls.

20. In a cross rolling machine, a plurality of cross rolls having their axes lying in substantially parallel planes, a plurality of drive shafts extending at substantially right angles to such planes, and gearing connecting each cross roll 1 to a drive shaft, the cross rolls being relatively adjustable while their axes remain in substantial parallelism.

21, In a cross rolling machine, a cross roll, a shaft extending at an angle to the axis of the cross roll, adjustable means for moving the cross roll along the shaft and arranged to maintain such angularity constant, and gearing connecting the shaft and the cross roll in any adjusted position.

22. In a cross rolling machine, a cross roll, a shaft extending substantially perpendicularly to the axis of the cross roll, adjustable means for moving the cross roll along the shaft and arranged to maintain such perpendicularity constant, and gearing connecting the shaft and the cross roll in any adjusted position.

23. In a cross rolling machine, a plurality of cross rolls, a plurality of shafts extending at anangle to the axes of the cross rolls, adjustable means for moving the cross rolls along the shafts and arranged to maintain such angularity constant, and gearing connecting each cross roll to a shaft in any adjusted position.

24. In a cross rolling machine, a frame, a drive shaft carried thereby, a slide movable in the frame in a direction substantially parallel to the axis of the shaft, a cross roll journalled in the slide substantially perpendicular to the drive shaft, and gearing connecting the drive shaft and the cross roll, the cross roll being adjustable without disturbing its substantial perpendicularity to the drive shaft.

25. In a cross rolling machine, a plurality of sets of cross rolls, a plurality of shafts extending at an angle to the axis of each of the cross rolls, means for adjusting at least one set of the cross rolls along the shafts in such manner as to maintain such angularity constant, and gearing connecting the shafts with the cross rolls in any adjusted position.

PE'I'I'ER B. ABRAMSEN. 

